Try Math Cats!

How many shopping minutes do you have until Christmas? How many seconds until your next birthday ? How many years until you are a billion seconds old?

Go to http://www.mathcats.com/explore/elapsedtime.html - Try the Elapsed TIme Calculator.

How to use the Elapsed Time Calculator:

Set each date to a time in the past or the future, or NOW.
(Click on NOW and change to "Choose a date" if you want to set both dates.)
Click and type or use the arrows to change the year. Use the drop-down menus or arrows to change months, days, hours, minutes, or seconds.
(Future dates have a pale green background; past dates have a darker green background.)

You might want your students to estimate how many minutes (or hours or seconds) they are old, or maybe even have them try to calculate it themselves. Then they can go to the website and see how close they were!

1. Go to: http://www.mathcats.com/explore/age/calculator.html
2. Use the pull-down menus at the top of the page to enter your birth date. (You can also enter your time of birth if you know it.)
3. Click the “find your age” button.